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JP2007201726

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JP2007201726
PROBLEM TO BE SOLVED: To easily acquire gain (correction) information etc. of an arbitrary
frequency. SOLUTION: A storage unit 10 in which frequency characteristic data in which an
arbitrary gain is set for each frequency is stored for each channel, a channel selection unit 11 for
selecting an arbitrary channel, and a channel selection unit 11 The frequency selection unit 12
selects an arbitrary frequency from among the arbitrary channels selected by the storage unit 13,
the storage unit 13 stores the arbitrary frequency selected by the frequency selection unit 12,
and the channel selection unit 11 selects an arbitrary channel. When is selected, the
corresponding frequency characteristic data is read from the storage unit 10, a display image is
generated based on the read frequency characteristic data, the generated display image is
displayed on the display unit 20, and the frequency selection unit 12 arbitrarily And a display
control unit 15 which displays an arbitrary frequency in a distinguishable manner on the display
image when the frequency is selected. [Selected figure] Figure 1
Frequency characteristic control apparatus and method and program
[0001]
The present invention relates to a frequency characteristic control apparatus, method, and
program for display control of setting conditions such as frequency gain in each speaker.
[0002]
Among various types of audio equipment such as an audio player and a recorder, there are
devices which can display various characteristics related to audio signals of each channel.
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For example, in a stereo set having an equalizer, when equalization with respect to audio signals
of L and R channels is possible, it is known that the equalization characteristic of each channel
can be displayed on the display unit.
[0003]
JP-A-8-314419
[0004]
By the way, when adjusting the gain of an arbitrary frequency in an arbitrary channel, moving to
another channel and adjusting the gain of an arbitrary frequency in the other channel, the user
adjusts just before moving to another channel You may want to adjust the gain of the same
frequency and any frequency in any channel you did.
[0005]
However, in the conventional apparatus, when switching the channel, the frequency initially
selected is the initial value (maximum value or minimum value), and the user changes the
frequency to be adjusted for gain each time the channel is switched. It was necessary to reselect
(Figure 4).
[0006]
Also, at present, the AV amplifier has a function of displaying a lot of information according to
the user's operation, but in the operation of setting the speaker, the channel switching operation
is performed to adjust the gain of the frequency. If the selected item (frequency for which gain
adjustment is to be performed) is updated to the initial value each time the user performs an
operation, a frequency selection operation is required to obtain correction information of an
arbitrary frequency, and usability is poor. .
[0007]
Therefore, in the present invention, in view of the above problems, when a channel switching
operation is performed and a new channel is selected, the frequency is the same as the frequency
of an arbitrary channel selected immediately before the switching operation is performed.
Abstract: A frequency characteristic control apparatus, method, and program for selecting a
frequency of
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[0008]
The frequency characteristic control apparatus according to the present invention, in order to
solve the problems described above, storage means in which frequency characteristic data in
which an arbitrary gain is set for each frequency is stored for each channel, and an arbitrary
channel. Channel selecting means for selecting, frequency selecting means for selecting an
arbitrary frequency from arbitrary channels selected by the channel selecting means, storage
means for storing an arbitrary frequency selected by the frequency selecting means, and channel
When an arbitrary channel is selected by the selection means, the corresponding frequency
characteristic data is read from the storage means, a display image is generated based on the
read frequency characteristic data, and the generated display image is displayed on the display
unit. A table for identifiably displaying an arbitrary frequency on a display image when an
arbitrary frequency is selected by the means And a control unit.
When another channel is selected by the channel selection unit, the display control unit reads out
from the storage unit frequency characteristic data corresponding to the selected other channel,
and generates a display image based on the read out frequency characteristic data. The displayed
image is displayed on the display unit, and the same frequency as the frequency stored in the
storage means is displayed on the displayed image in a discriminable manner.
[0009]
Further, in the frequency characteristic control method according to the present invention, when
an arbitrary channel is selected by the channel selection step of selecting an arbitrary channel
and the channel selection step in order to solve the above-mentioned problem, the corresponding
frequency characteristic The frequency characteristic data in which an arbitrary gain is set for
each frequency is read from the storage unit stored for each channel, a display image is
generated based on the read frequency characteristic data, and the generated display image is
displayed. The first display step displayed on the unit, the frequency selection step of selecting
an arbitrary frequency from the arbitrary channels selected in the channel selection step, and the
arbitrary frequency selected in the frequency selection step are stored in the storage unit. An
arbitrary frequency is selected by the storing step of storing and the frequency selecting step. In,
and a second display step of identifiably display any frequency on the display image.
In the first display step, when another channel is selected by the channel selection step,
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frequency characteristic data corresponding to the selected other channel is read from the
storage unit, and a display image is generated based on the read frequency characteristic data.
The second display step displays the same frequency as the frequency stored in the storage unit
on the display image in a discriminable manner.
[0010]
Further, the program according to the present invention, in order to solve the above-mentioned
problems, a channel selection step of selecting an arbitrary channel, and a frequency
characteristic data corresponding to an arbitrary channel selected by the channel selection step.
The frequency characteristic data in which an arbitrary gain is set for each frequency is read
from the storage unit stored for each channel, a display image is generated based on the read
frequency characteristic data, and the generated display image is displayed on the display unit
Storing, in the storage unit, an arbitrary frequency selected in an arbitrary frequency selected
from an arbitrary channel selected in the first display step to be selected, the channel selection
step, and an arbitrary frequency selected in the frequency selection step When an arbitrary
frequency is selected by the step and the frequency selection step, A program for causing a
computer to execute a second display step of identifiably displaying an arbitrary frequency on an
image, the first display step selecting another channel by the channel selection step. The
frequency characteristic data corresponding to the selected other channel is read from the
storage unit, a display image is generated based on the read frequency characteristic data, the
generated display image is displayed on the display unit, and the second display step stores The
same frequency as the frequency stored in the unit is displayed on the display image in a
distinguishable manner.
[0011]
In the present invention, even if the channel is moved, the frequency for which the gain is
selected does not fluctuate, so the frequency is not initialized every time the channel is moved,
and gain (correction) information etc. of an arbitrary frequency is obtained. Operation can be
simplified.
[0012]
Hereinafter, embodiments of the present invention will be described in detail with reference to
the drawings.
In the following embodiment, 5.1 ch (right front channel (RFC), left front channel (LFC) for right
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front channel (RFC), right surround channel (RSC), right surround channel (RSC) The equalizer
settings in a home theater system comprising the left surround channel (LSC), the right surround
back channel (RSBC), and the left surround back channel (LSBC) output for the right surround
back channel (RSBC) are described as an example.
[0013]
The frequency characteristic control device 1 according to the present invention adjusts the gain
and the like from the bass range (low frequency) to the high range (high frequency) with respect
to the sound signal output from the speaker at the time of sound reproduction. , And as shown in
FIG. 1, frequency characteristic data in which an arbitrary gain is set for each frequency is stored
for each channel, and a channel for selecting an arbitrary channel. Selection unit 11, Frequency
selection unit 12 for selecting an arbitrary frequency from arbitrary channels selected by
channel selection unit 11, Storage unit 13 for storing an arbitrary frequency selected by
frequency selection unit 12 A gain adjustment unit 14 for adjusting the gain of an arbitrary
frequency selected by the frequency selection unit 12, and an arbitrary channel by the channel
selection unit 11. When the user selects a file, the corresponding frequency characteristic data is
read from the storage unit 10, a display image is generated based on the read frequency
characteristic data, the generated display image is displayed on the display unit 20, and the
frequency selection unit 12 When an arbitrary frequency is selected, an arbitrary frequency is
identifiably displayed on the display image, and when the gain adjustment unit 14 adjusts the
gain of the arbitrary frequency, the information of the adjusted gain is displayed as an image And
a display control unit 15 for displaying on top.
[0014]
Further, when another channel is selected by the channel selection unit 11, the display control
unit 15 reads out from the storage unit 10 the frequency characteristic data corresponding to the
selected other channel, and a display image based on the read out frequency characteristic data.
Are generated on the display unit 20, and the same frequency as the frequency stored in the
storage unit 13 is displayed on the display image in a discriminable manner.
[0015]
The frequency characteristic data stored in the storage unit 10 is data to which an arbitrary gain
is attached as an initial setting for each frequency defined at an arbitrary frequency interval.
In addition, as the frequency characteristic data, for example, a flat pattern (all gain is 0 dB) or a
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pattern in which the low range is suppressed and the high range is emphasized (the low range
gain is lower than 0 dB and the high range gain) Is higher than 0 dB) and the like.
Further, in the present embodiment, as described above, six speakers are prepared, so the
storage unit 10 stores frequency characteristic data for six channels.
Also, although the frequency characteristic data stored in the storage unit 10 has been described
as a preset characteristic, it may be a characteristic set by the user in the past.
[0016]
The channel selection unit 11 selects an arbitrary channel from among a plurality of channels in
response to a channel selection operation by the user.
As described above, when an arbitrary channel is selected by the channel selection unit 11, the
display control unit 15 reads out the frequency characteristic data of the corresponding channel
from the storage unit 10, and a display image based on the read frequency characteristic data
Are generated, and the generated display image is displayed on the display unit 20.
[0017]
The frequency selection unit 12 selects an arbitrary frequency from among the arbitrary
channels selected by the channel selection unit 11 according to the frequency selection operation
by the user.
Further, the storage unit 13 stores an arbitrary frequency selected by the frequency selection
unit 12.
[0018]
In addition, when an arbitrary frequency is selected by the frequency selection unit 12, the
display control unit 15 displays the arbitrary frequency in a distinguishable manner on the
display image displayed on the display unit 20.
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[0019]
The gain adjustment unit 14 adjusts the gain of an arbitrary frequency selected by the frequency
selection unit 12 according to the gain adjustment operation by the user.
Further, when the gain adjusting unit 14 adjusts the gain of an arbitrary frequency, the display
control unit 15 displays information of the adjusted gain on the display image displayed on the
display unit 20.
[0020]
Here, the display image displayed on the display unit 20 by the frequency characteristic control
device 1 will be described.
In the following, the display control unit 15 reads from the storage unit 10 the frequency
characteristic data corresponding to the one channel selected by the channel selection unit 14
and the frequency characteristic data corresponding to the channel for the one channel. It is
assumed that one display image is generated based on the respective read frequency
characteristic data, and the generated display image is displayed on the display unit 20.
[0021]
The display control unit 15 generates a display image as shown in FIG. 2, for example, and
displays the display image on the display unit 20 in response to a predetermined channel
selection operation by the user. 2a shows a display image generated by the display control unit
15 when the right front channel (RFC) or the left front channel (LFC) is selected by the channel
selection unit 11, and FIG. 2b shows the channel selection unit 11 Shows a display image
generated by the display control unit 15 when the right surround channel (RSC) or the left
surround channel (LSC) is selected according to FIG. 2c shows the right surround back channel
(RSBC) by the channel selection unit 11. Or a display image generated by the display control unit
15 when the left surround back channel (LSBC) is selected.
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[0022]
In the display image, as shown in FIG. 2, the horizontal axis indicates the frequency (the higher
the frequency is to the right), and the vertical axis indicates the setting gain (-12 dB to +12 dB) of
each frequency. In accordance with the selected channel, the pair of left and right channels is
divided into upper and lower parts, and at the top, information of the currently selected channel
and the currently selected frequency are shown. And the information on the gain (correction
value) in each channel of the frequency, and the lowermost portion shows an operation guide for
assisting the user's operation.
[0023]
Next, a process of generating and sequentially changing the display screen in accordance with a
predetermined selection operation by the user will be described with reference to the flowchart
shown in FIG.
Further, it is assumed that the predetermined selection operation by the user is performed by the
operation device having the operation key (cross key). Further, the cross key included in the
operation device is provided with an operation function in advance, and the channel selection
operation is performed by the operation of the left and right keys, and the frequency selection
operation is performed by the operation of the up and down keys.
[0024]
For example, the user selects and operates the right front channel (RFC) with the operation keys
(right and left keys) of the operation device (step S1). The channel selection unit 11 selects the
right front channel (RFC) according to the channel selection operation by the user (step S2). The
display control unit 15 reads the frequency characteristic data corresponding to the channel
(RFC) selected by the channel selection unit 11 and the frequency characteristic data
corresponding to the LFC for the RFC from the storage unit 10, and reads the two frequency
characteristics read out. A display image is generated based on the data, and the generated
display image is displayed on the display unit 20 (step S3).
[0025]
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The user arbitrarily operates the frequency in the RFC with the operation keys (up and down
keys) of the operation device (step S4). In the process of step S4, it is assumed that 250 Hz is
selected and operated as the frequency.
[0026]
The frequency selection unit 12 selects 250 Hz according to the frequency selection operation by
the user (step S5). At this time, the selected frequency (250 Hz) is stored in the storage unit 13
(step S6).
[0027]
The display control unit 15 identifiably displays the frequency selected by the frequency
selection unit 12 on the display screen (step S7). In the process of step S7, as shown in FIG. 2a,
"250 Hz" is displayed on the top of the display screen in order to clearly indicate the frequency
to be selected, and is also displayed graphically. In addition, the display control unit 15 explicitly
indicates the frequency to be selected by indicating the frequency to be selected by “●” and
by indicating the other frequency not to be selected by “o”. It is displayed on.
[0028]
The display screen also shows information on the gain "5.5 dB" of the left channel (LFC) and the
gain "5.5 dB" of the right channel (RFC) at "250 Hz".
[0029]
At this time, when it is necessary to adjust the gain, the gain adjustment unit 14 adjusts the gain.
[0030]
Further, the user selects and operates the right surround channel (RSC) with the operation keys
(right and left keys) of the operation device (step S8).
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The channel selection unit 11 selects an RSC according to the channel selection operation by the
user (step S9).
[0031]
The display control unit 15 reads the frequency characteristic data corresponding to the channel
(RSC) selected by the channel selection unit 11 and the frequency characteristic data
corresponding to the LSC for the RSC from the storage unit 10, and reads the two frequency
characteristics read out. A display image based on the data is generated, and the generated
display image is displayed on the display unit 20 (step S10).
In the process of step S10, the display control unit 15 refers to the frequency (250 Hz) stored in
the storage unit 13 and displays the same frequency as the frequency on the display image in a
discriminable manner (FIG. 2b).
[0032]
Further, the user selects and operates the right surround back channel (RSBC) with the operation
keys (right and left keys) of the operation device (step S11). The channel selection unit 11 selects
the RSBC according to the channel selection operation by the user (step S12).
[0033]
The display control unit 15 reads from the storage unit 10 the frequency characteristic data
corresponding to the channel (RSBC) selected by the channel selection unit 11 and the frequency
characteristic data corresponding to the LSBC for the RSBC, and reads the two frequency
characteristics. A display image based on the data is generated, and the generated display image
is displayed on the display unit 20 (step S13). In the process of step S13, the display control unit
15 refers to the frequency (250 Hz) stored in the storage unit 13 and displays the same
frequency as the frequency on the display image in a discriminable manner (FIG. 2c).
[0034]
Thus, as shown in FIGS. 2a to 2c, the frequency characteristic control device 1 does not change
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the frequency for which the gain is selected even if the channel is moved, so the frequency
characteristic controller 1 changes the frequency each time the channel is moved. Is not
initialized, and the acquisition operation of gain (correction) information etc. of an arbitrary
frequency can be simplified.
[0035]
Further, in the present invention, the series of processes by the frequency characteristic control
device 1 described above can also be performed by software.
When the series of processes are performed by software, a program constituting the software is
installed in a general-purpose computer or the like. Also, the program may be recorded on a
removable medium such as a CD-ROM and distributed to the user, or may be distributed by being
downloaded to the user's computer via a network.
[0036]
Furthermore, the present invention is not limited to the above-described embodiment described
with reference to the drawings, and various modifications, substitutions or equivalents thereof
may be made without departing from the scope of the appended claims and the subject matter
thereof. Of course what can be done.
[0037]
It is a block diagram showing composition of a frequency characteristic control device
concerning the present invention.
It is a figure which shows the 1st display image produced | generated by the frequency
characteristic control apparatus which concerns on this invention. It is a figure which shows the
2nd display image produced | generated by the frequency characteristic control apparatus which
concerns on this invention. It is a figure which shows the 3rd display image produced | generated
by the frequency characteristic control apparatus which concerns on this invention. It is a flow
chart which serves to explain a process of generating a display image by the frequency
characteristic control device according to the present invention and sequentially changing the
generated display image. It is a figure where it uses for description about the problem
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accompanying the switching operation of the channel by a conventional apparatus.
Explanation of sign
[0038]
Reference Signs List 1 frequency characteristic control device, 10 storage unit, 11 channel
selection unit, 12 frequency selection unit, 13 storage unit, 14 gain adjustment unit, 15 display
control unit
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